Next Article in Journal
A Fast Fault Identification in a Grid-Connected Photovoltaic System Using Wavelet Multi-Resolution Singular Spectrum Entropy and Support Vector Machine
Previous Article in Journal
CFD Computation of the H-Darrieus Wind Turbine—The Impact of the Rotating Shaft on the Rotor Performance
Open AccessArticle

Stepped Leader Progression and Speed Evolution in a Thunderstorm: Theoretical Model

1
Department of Material Science, University of Oviedo, 33204 Gijón, Spain
2
LEMUR Group, Department of Electrical Engineering, University of Oviedo, 33204 Gijón, Spain
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2018 IEEE International Conference on Environment and Electrical Engineering and Industrial and Commercial Power Systems Europe (EEEIC/ICPS Europe), Palermo, Italy, 12–15 June 2018.
Energies 2019, 12(13), 2507; https://doi.org/10.3390/en12132507
Received: 22 April 2019 / Revised: 18 June 2019 / Accepted: 19 June 2019 / Published: 28 June 2019
(This article belongs to the Section Energy and Environment)
This paper presents a theoretical model to describe the progression of leading (falling) lightnings in storms (stepped leaders). Stepped leaders move down from the thundercloud base to the encounter point with an upward streamer. First, the existing models, related to the advance of leading lightnings, are analyzed. Then, a novel theory is presented. The proposed model describes both the leader progression and speed. It aims at explaining the leader progression as a succession of several steps, or branches, that form the well-known tree-like shape. The speed of advance per step is described as a function of various parameters: the charge concentration surface diameter and the step length, among others. The derived formulas include two new parameter named ( χ ) and G. χ is the ratio between the guide beam length ( L ) and the diameter of the circle, inside the cloud, where the charges are concentrated ( D ) . G relates density of charges, as explained herein. View Full-Text
Keywords: electric field; leader progression model; stepped leader; thunderstorm electric field; leader progression model; stepped leader; thunderstorm
Show Figures

Graphical abstract

MDPI and ACS Style

Seminario-García, A.; González-Morán, C.; Arboleya, P. Stepped Leader Progression and Speed Evolution in a Thunderstorm: Theoretical Model. Energies 2019, 12, 2507.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop